Question:* What is a term for heat transfer between two objects in contact, driven by a constant temperature difference?
Answer: • steady state conduction
Question:* What aspect of machine virabtion is described in cycles per second?
Answer: • Frequency
Question:* What can be done to increase the capacity of a plate frame heat exchanger?
Answer: • Install additional plates
Question:* Which type of gear meshing should be employed to transmit torque to a linear force?
Answer: • Rack and Pinion
Question:* What is defined as the ratio of tensile stress to tensile strain?
Answer: • Young's modulus
Question:* Which of these manufacturing processes involves pouring liquid metal into a mould?
Answer: • casting
Question:* How do we describe the property of an object or material which will restore it to its original shape after distortion?
Answer: • Elasticity
Question:* The set of equations used to describe motion?
Answer: • Kinematic
Question:* What are the three basic methods of heat tranfser?
Answer: • Conduction, Convection and Radiation
Question:* Total mechanical energy is the sum of what two forms of energy?
Answer: • Kinetic Energy and Potential Energy
Question:* True or False: All matter with a temperature greater than absolute zero emits thermal radiation.
Answer: • True
Question:* What is the result of continous cyclic loads on a metal object?
Answer: • Metal fatigue
Question:* Newton's law of cooling states that the rate of heat loss of a body is proportional to:
Answer: • the difference in temperatures between the body and its surroundings
Question:* Which value must be calculated into piping system designs?
Answer: • Expansion coefficient
Question:* True or False: Silicon can be used to make microelectromechanical systems.
Answer: • True
Question:* True or False: A perfect Carnot heat engine cannot be built in reality.
Answer: • True
Question:* What is the measure of a fluid's resistance to gradual deformation by shear stress or tensile stress?
Answer: • viscosity
Question:* True or False: Vapour compression used in most household refrigerators is a non-cyclic process.
Answer: • False
Question:* What is the rotational force exerted by a spinning shaft?
Answer: • Torque
Question:* What term describes the calculations related to objects with greater than zero velocity?
Answer: • Dynamics
Question:* What does ASME stand for?
Answer: • American Society of Mechanical Engineers
Question:* Which device is used to store rotational energy?
Answer: • flywheel
Question:* Which if these is NOT a component of aerodynamic force?
Answer: • pinch
Question:* Why are fan assemblies usually designed with spring isolators?
Answer: • To minimize vibration
Question:* What are the units for Reynold's number?
Answer: • no dimensions
Question:* What is a tool used for stamping metal by a press?
Answer: • die
Question:* How is the heat energy that changes the state of an object but not its temperature described?
Answer: • Latent heat
Question:* What is an upward force exerted by a fluid that opposes the weight of an immersed object?
Answer: • buoyancy
Question:* What describes the effect of a material expanding in the directions perpendicular to its direction of compression?
Answer: • Poisson Effect
Question:* What is the simple mechanics description of a force acting upon an object to cause a displacement of the object?
Answer: • Work
Question:* Which mechanism can convert rotational motion to reciprocating motion?
Answer: • slider-crank
Question:* Which machine tool rotates the workpiece on its axis?
Answer: • lathe
Question:* Which fieldlines are instantaneously tangent to the velocity vector of flow?
Answer: • streamlines
Question:* What is the lowest stress that produces a permanent deformation in a material?
Answer: • Yield strength
Question:* What type of deformation may take place when large amounts of tensile strain are localized in a small area of a material?
Answer: • Necking
Question:* What is one advantage of multi-stage centrifugal pump configurations over single-stage centrifugal pump configurations?
Answer: • Higher pressures can be derived
Question:* What is the unit of measurement defined as "the amount of heat needed to raise 1 pound of water 1 degree"?
Answer: • BTU
Question:* How many degrees of freedom does a rigid body have in three dimensional space?
Answer: • six
Question:* Which stress acts in parallell with the cross section of a material?
Answer: • shear
Question:* What is the term for the ability of a material to withstand the force of being pulled apart?
Answer: • Tensile strength
Question:* Which of these is a turbine for hydro power?
Answer: • Pelton wheel
Question:* What is constant in an isochoric process?
Answer: • volume
Question:* What is the purpose of simple machines such as pulleys and levers?
Answer: • To create mechanical advantage.
Question:* What force describes the principle of Newton's second Law of Motion that objects naturally resist changes to their course of motion?
Answer: • Inertia
Question:* Which of these factors least affects the heat dissipation by a heat sink?
Answer: • mechanical pressure on heat sink
Question:* What must happen to fuel oil at the burner for efficient combustion?
Answer: • Atomization
Question:* The reduction in effectiveness of a vehicular brake is called:
Answer: • brake fade
Question:* Which term is used to describe the angle of the cutting face relative to the cutting work?
Answer: • Rake angle
Question:* Which chemical can be added to a closed loop system to prevent freezing?
Answer: • Glycol
Question:* Place these in the correct order for torsion: T,L,J,theta
Answer: • TL/Jtheta
Question:* Which of these is NOT a state function?
Answer: • heat
Question:* Which is the most common stress used to evaluate the yielding of ductile materials?
Answer: • Von Mises Stress
Question:* Which of these processes involves melting the workpieces?
Answer: • welding
Question:* Creep is the tendency of a solid to:
Answer: • deform permanently under mechanical stress
Question:* What kind of an engine does an Otto cycle describe?
Answer: • spark ignition
Question:* What is designed into gear sets to provide the proper amount of teeth clearance to avoid binding?
Answer: • Backlash
Question:* When a material is compressed in one direction, it tends to expand in the other two directions perpendicular to the direction of compression. What is this effect called?
Answer: • Poisson Effect
Question:* Which fan configuration is designed to add energy to airflow passing straight through the fan blades?
Answer: • Axial fan configuration
Question:* What is another name for a gear traing's torque ratio?
Answer: • mechanical advantage
Question:* What is the term for the cutting process where the tool and cutting surface are perpendicular to each other?
Answer: • Orthogonal cutting
Question:* Approximately how much does one gallon of water weigh?
Answer: • 8.33 lbs
Question:* Which of these is a method used to evaluate new product ideas?
Answer: • SWOT analysis
Question:* What is the maximum allowable working pressure for a low pressure steam boiler?
Answer: • 15 psi
Question:* How do we describe the process for determining the magnitudes of the components of a vector directed in two dimensions?
Answer: • Vector Resolution
Question:* What is the name of the 3 valve configuration designed to continuously vent unwanted fuel away from it's point of use?
Answer: • Block and bleed
Question:* Which law of thermodynamics captures the idea that higher temperature materials will always gravitate toward cooler temperatures?
Answer: • The second law of Thermodynamics
Question:* According to Bernoulli's principle, what happens in an ideal fluid with a decrease in pressure?
Answer: • increase in speed
Question:* What is the force that prevents a material from being torn apart?
Answer: • Tensile strength
Question:* According to Newton's first law, if the vector sum of all forces acting on a body is zero, then its:
Answer: • velocity is constant
Question:* What are the units for a moment of inertia?
Answer: • kg.m^2
Question:* As related to steam production, what do the letters BHP stand for?
Answer: • Boiler horsepower
Question:* True or False: The force needed to extend a spring by a certain distance is inversely proportional to that distance.
Answer: • False
Question:* Cooling tons are calculated as the amount of heat energy needed to turn one ton of ice into water over what time period?
Answer: • 24 hours
Question:* What machinability rating has the American Iron and Steel Institute (AISI) given to AISI No. 1112 carbon steel?
Answer: • 100%
Question:* What two fuel types are commonly incorporated into dual fuel burner design?
Answer: • Natural gas and fuel oil
Question:* What type of fuel oil pump will deliver consistent pressure and volume with minimal fluctuations to combustion eqiupment?
Answer: • A positive displacement pump
Question:* What quality should shock resisting steel posses?
Answer: • High Toughness
Question:* A four bar linkage system meets the Grashof condition if:
Answer: • The shortest link can rotate fully with respect to a neighboring link.
Question:* What is the density of water?
Answer: • 1000 kg/m^3
Question:* In relation to O-Ring sealing, what are back up seals.
Answer: • Additional rings which help prevent O-Ring extrusion
Question:* Cogeneration commonly combines the production of what two forms of energy?
Answer: • Electricity and Steam
Question:* Doubling the thickness of a rectangular cantilever beam will do what to the stiffness?
Answer: • The beam becomes 8x stiffer.
Question:* In a heat exchanger application, what value does the term "temperature delta" refer to?
Answer: • The difference in temperature between supply and return on one side of the system
Question:* A Mohr's circle reduces to a point when the body is subjected to which of the following conditions?
Answer: • Equal axial stress on two mutually perpendicular planes, the planes being free of shear
Question:* Water can be raised in temperature by means of what type of energy?
Answer: • Sensible heat
Question:* For a completely isolated system, what is the entropy at thermodynamic equilibrium?
Answer: • maximum
Question:* What is the ratio of the molar volume of a gas to the molar volume of an ideal gas at the same temperature and pressure?
Answer: • Compressibility factor
Question:* When dimensioning drawings with Inches which of these is the correct format?
Answer: • .05±.01
Question:* Which thermodynamic cycle is ideally isobaric?
Answer: • Brayton cycle
Question:* What is the term for the horizontal portion of a chimney draft system extending from combustion equipment?
Answer: • Breeching
Question:* For a machine resting on four legs, how do you describe the leg not carrying equal weight to the other three?
Answer: • The soft foot
Question:* What is the SI unit for thermal resistance?
Answer: • Kelvins per Watt
Question:* What is the static head pressure of a column of water 2 ft high?
Answer: • .866 psi
Question:* What type of loading is applied to a coil spring in compression?
Answer: • Torsion
Question:* Which of these is NOT a type of truss?
Answer: • Thomas truss
Question:* What is the function of unloaders in a reciprocating compressors design?
Answer: • To decrease the compressor capacity
Question:* Which of these is a method for visualizing and analyzing fluid flow?
Answer: • Particle image velocimetry
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